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vacon • 252 APPENDIX 7 - parameters for application developers
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FBControlSlotSelector_fwu8 variable is used to select the controlling fieldbus option board slot.
When selected (other than '0'), process data is accepted only from the selected slot and all other
process data is discarded. Process data out is still updated normally to all slots.
This selector can be used to support redundant fieldbus connection. In fieldbus redundancy mode
two fieldbus option boards are installed to VACON
®
NXP option board slots D and E. Application
selects with FBControlSlotSelector_fwu8 variable which fieldbus option board can deliver process
data from fieldbus master to the application.
Default value for FBControlSlotSelector_fwu8 is '0' which means that process data is accepted from
both fieldbus option boards.
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